Electrical plug



I. G. BENTON. ELgCTfiSCAL PLUG. APPLICATION FILED JULY 28. I917.

Patented Nov 2, 132$) w M w MM 4 A M m m W 0 5 1 z z a i w E'D STA ES PATENT OFFICE.

JAMES. GORDON E-Neon, or: maasormsuvn, ausnnc, canana, .assrsnon, BY mnsnn .assmumnn'rs or ORE-HALF ro anus-Munster, or Monrnnan, aunnnc; CANADA.

ELECTRICAL PLUG.

Specification of Letters latent.

Patented Nov. 23, 1920.

Application filed July 2&3, 1917. fierial'l'qo. 183,366.

To all whom it may concern Be it known that 1, James GoRnoN BEN TON, a subject of the King of Great Britain, and resident of the city of Maisonneuve, Province of Quebec, Canada, have invented certain new and useful Improvements in 'ltlectrical Plugs, and do hereby declare the following to be a full, clear, and exact .de-.

latter. In the use of plugs as heretofore constructed, however, an inconvenience and disadvantage has been percelved owing to the fact that to openthe circuit such prior plugs have to be either displaced or entirely removed from the terminal posts and, on the other hand, necessltate a modification in the construction of the standard'domestic resistance devices iii-general use and.

thus prevent effective employment. of the plug with the standard devices.

An object of the present invention 1s to incorporate in a plug adapted to beslipped over the terminal posts oi an electrical resistance devlce, an element whereby the c1rcuit through the resistance can be positively ,opened and closed without necessitating displacement of the plug or modification in the construction of the resistance device.

Another object is to provide a simply constructed and compactly incorporated circuit controller and plug adapted to he slipped over the terminal posts of anelectrical resistance .device.

The objects andadvantages will be hereinafter more fully described and particularly pointed out in the appended claims.

For full comprehension, however, of my invention reference should be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate the same parts and wherein:

which my invention applies Figure l is a perspective view illustratng my improved plug inuse, the plug belng partly in section;

Big. 2 is an enlarged longitudinal section on l ne 22 Fig. 3 and F1g. 3 is a transverse section on Fig. 2.

lteferringnow to the drawings, the body of the plug 18 formed oi": two similar halves 2, 2 of insulating material fastened together as by screws or other suitable means,

line 3-3,

and the terminals are open or exposed to.

the exterior of the plug at one end and these outer ends are adapted to be slipped over posts 4 forming the terminals of a resistance element (not shown) in a device indicated at 5.

The body of the plug is formed with a recess (5 at the rear of the inner ends of the tubes 3 and a hollow metallic standard 7 is supported in the recess, such standard be-' ing slotted longitudinally at 8 to accommodate a metallic rocking bar 9 pivotally supported in the slot by a pin 10 extending throughthe standard.

. The rocking bar extends to the front and rear of the standard and is permitted a' swinging movement longitudinally of the standard, the bar being actuated through the medium of rigid links 11 and 12 respective-ly attached to the baf at each side of the .standard and extending out through apertures 13 in the body 2 and finger pieces 14 being attached to their protruding ends.

A coiled spring 15 is located within the hollow standard at a point above bar 9 and presses downwardly upon the bar through the medium of a ball 16 guided within the standard, the upper edge of the bar being depressed at each side of the pivot pin 10 to form recesses or depressions l7v divided by a partition 18 in line with the pin.

When one end of the bar is depressed by pushing one of the links inward, the partition lSengageS the ball and, forcing same upwardly against the resistance of the spring, passes from one side "of the-pivot pin to the other and causes the spring pressed ball to pass from one recess to the other. In this manner the, depression of one end of the bar and consequent movement of the partition toward one side, causes the ball to move into the recess at the opposite side of the partition and restrain return movement of the latter, the influence of the min .ing the, bar in ills position llMlllUKl to one side oi the shinihiirtl until such time as the other link pun-hail inwa will and the spring; vol-coin e.

A post supported in recess 6 adjacent iilzandari'l carries a siai-i.onanv ei'intaol; ilih a spring SOCliQl 2' below anrl in the nbh of an outwardly and downwardly exelecirioal eonneetiol'i Si handing finger 23 in with and carried by [he rear onrl oi. hair X'llil'l ihe bar, eonscii'nlin'ig a,

such, linger :i'novnhlo contact and heing hroughi e gagoniont with the sooner, when rear end of bar 9 is depressed.

The plug is connected to one coil of a eonducior eoril Q4: havingtwo COZMlHCLOl'm one of Whieh is connected at to a eomlnetingr sirip b and through it; to one of the plug terminals 3 and the other comlnctor connected at 20 to the stationary eontae't 21 and. through socket finger 23 when on gageil With the lati or, and arm 9., to thee standard 7 between which and lilie olihoi' terminal 3 a wire 2? extends The opposite oncl of (he eoinhnrtor ((li'il is attached in an suitable manner lo the honso or other L coil; and, when all mixed and the ill'lnlllukl 3 of ihe, ph inserting: omr iho posts oi tho rwislanoo rl v Current llDZ i os through tho plug aloi'ig l'ho path (if? Sl'flliJBCl in the precoiiling parag aph ll'he'i'i it in (lCSlIfli to open the cireni... link ll at the front of the standard is pnslioil inward fllhl linger 23 Z i. C(i onl:v of oi'igxiig'emeiit will: socket the spring 15 holding, lg-he eoniai'i enii oi bar 9 raised ancl so inaintaininq circuit open nnliil linh l1 depressed to again lower the linger inlo engagement with liho stationary {i011 The a horo (lQSUl'lllOil oons'irnel'ion innshles a ping lo heas usual. entirely reinm'ml from the posts oi. the I'GS SUZiIiCU (i. To when H is desired to place same away and in aihiilion provides a compaet (leviee enabling tho 'l1- enit to be eonwnienl'ly opened or eloaerl. indopeinlently oi the removal of the ping and Without necessitating nio lili ration in the construction of the resistance l v'lt' on o casions when a continuous electric enrrenl: is ni'nlesirahle such. as in iri'iningr lo ZIVOlJl e2 eessivo heating of the iron.

l'l hal l elaiin is as follows l. A ping for use in (:onneeiion with olee- 'l;i'i .'al roaintaneo iloi'iees, comprising; a boil of oblong: metanggnlar form and substantially hall the length of which constitutes a foi'naiil portion apering Lmvarcl its on! and adapted to any tubular harnnnals While the other half or rear portion pro-- sent-s a chamber having; four walls a top {ml a hotlgonn the wholh heingj l'oi'ineii oii' lllF-jlllililllg material: a pair of immovable tnhnlar terminals unwilling: throinrlmnl: the length of the forward portion and illllll illl to he SlilJlXll over lhe snhiiiianl'ially (U-4J3" lensive tern inals ol a resialanee ileviee: a eoivlneliing aitrip leading: from one ljahnlar terminal along the hoi'lom to ihe rear wall oi the ehainher: a i-itamlaril ll \((ll inonnled on ihe floor oi i'he ehanlher an l elei'lriez ll .'()lll1(l;l l lo the oilher tnhnlai' terminal: a otaiionary eon'tae't r-lri extending oi-wan! from the real wall 1 as ehaniher aml leiniinaiinp in a will; ei' aorhei; a roehing liar pivotally monnleil in will standard and in eectrieal eonneri'ion lherewii'h ainl eari'y ing: a oonlaeli ,inger for ino'i'en'ienl into ;lll(l out of uoniaeli Willi sahl oniael soeh'et: .means for roehingg' the bar alnl means for either posilion lo a'liieh it may he moved. liilll a pair of enrren'; eonrlnetors one oi which is eonneei'ed i'o ihe sahl conducting: strip and the other eonneeieil lo tho sialionary eoniaet shin 2 A pin for nse in eonneiriion with oleetially half the length of wnirh (:UllHLllIHlILIi a 'lorn'ai'il portion tapering: lowaril its end and adapt-Hi 1o earry 'fnholar Mrniinals While, the I hall or rear portion piwenls a chamber having lion]: wall. a lop and a bottom, the wholev being lornloil oi insulatillg}; material, and two openings being iforinoil in ihe top thereof; a pair of inin'wvahlo inhnlai' terminals exliei'nlinn throughmit tho long-iii of the forward porlion and ainipteil Ego he slipped over the snlaitaniially giro-exllfilwlfl'. terminals of a isianoo iloviee; a conducting lip loading i i'on'i. tho linhnlai' terminal lio he rear wall oi. the chamber: a iji'illltiziifll fixedly zi'ionnioo on the floor oi the eh: niher alnl electrically (.UllilQPiili n; the l tnlinlar terminal; a otalionary eon- (Xiillldil 1' forward :lrozn the roar and {eliminating in a lffilililllg har pi'i'otally aril and in electrical "in o a con and out oi l cont; ash lJUlli in the ope lingo in the to oi h; ding some; a spring; ilevieo l'or rosininiog lho ha r in eithor position to which 0, ho n'iovmh and a pair of onlrronl. eonom! ol' Wliiti'i is connected to ihe A 1 ,i'ni ahe other oonin Hi to L-iel; p.

{l connoetial will) ,iho making 

